Magnavox Projection TV Model 55P8288A
I have a Magnavox Projection TV model 55P8288A (I think it is 55"). After the TV has been on for an hour or two, the sound continues, but no picture shows. When this happens, I cannot turn the TV off by remote or manually with the TV buttons. I have to unplug the TV. After it sets for awhile, the TV turns back on and everything works fine for a few more hours. Any helpful advice would be appreciated.